Colour Kobo ereaders Available 30th April

[Quoth]

Originally Posted by lumping-sugar66

@ZodWallop, thank you for the comparative pictures. This iteration of the color eInk technology is moving in the right direction but still has a few steps to go before it becomes fit for every reading preference.

Kaleido is a nearly 5 year old "technology" (simply translucent coloured dots on 2 x 2 eink cell surface that don't cover the pixel).
It's not a major innovation, nor is it going to be getting better. It's more appropriate than the older Triton which was simply a copy of the stripes on a mono LCD. All LCDs are also mono, but have 250 to 1000 grey levels vs 14 with black and white for eink and can turn up the rear light to compensate.
QLED is actually mono LCD with a blue back light and green or red dots that change blue light, so only needs 1/6th of power. That can't easily work for eink.

So even Kaleido a few years ago is nearly as good as is possible.

[Quoth]

Originally Posted by lumping-sugar66

I was watching a YouTube video for the 2E vs. Colour comparison and one weird pattern caught my eye. I'm attaching the picture here; it looks like the Colour device has these diagonal lines as a pattern stretched throughout the page. At least from the video, it doesn't look like it's subtle and would be quite distracting to me.

I predicted this because the ereader attempts to do 300 dpi in mono. It should be limited to 150dpi, no doubt that's what the "anti-rainbow" setting does. Certain patterns of lines or spacings of dots at 300 dpi resolution will show up as certain colours due to the 2 x 2 coloured pattern printed on the panel.